Use -std=gnu11 if available.
This supersedes -std=gnu99, and enables C11 atomics.
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@ -171,10 +171,16 @@ fi
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if test "x$CFLAGS" = "x" ; then
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no_CFLAGS="yes"
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if test "x$GCC" = "xyes" ; then
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dnl JE_CFLAGS_APPEND([-std=gnu99])
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JE_CFLAGS_APPEND([-std=gnu11])
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if test "x$je_cv_cflags_appended" = "x-std=gnu11" ; then
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AC_DEFINE_UNQUOTED([JEMALLOC_HAS_RESTRICT])
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else
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JE_CFLAGS_APPEND([-std=gnu99])
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if test "x$je_cv_cflags_appended" = "x-std=gnu99" ; then
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AC_DEFINE_UNQUOTED([JEMALLOC_HAS_RESTRICT])
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fi
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fi
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JE_CFLAGS_APPEND([-Wall])
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JE_CFLAGS_APPEND([-Werror=declaration-after-statement])
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JE_CFLAGS_APPEND([-Wshorten-64-to-32])
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